Qur'an 19:17

فَٱتَّخَذَتْ مِن دُونِهِمْ حِجَابًا فَأَرْسَلْنَآ إِلَيْهَا رُوحَنَا فَتَمَثَّلَ لَهَا بَشَرًا سَوِيًّا

“And she took, in seclusion from them, a screen. Then We sent to her Our Angel [i.e., Gabriel], and he represented himself to her as a well-proportioned man.”

Maryam 19:17 · Saheeh International